package day03;

import java.util.Scanner;

public class h4 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("输入年份：");
        int year=scanner.nextInt();
        System.out.print("输入月份：");
        int month=scanner.nextInt();
        int day = 0;
        switch (month){
            case 1:
            case 3:
            case 5:
            case 7:
            case 8:
            case 10:
            case 12:
                day=31;break;
            case 4:
            case 6:
            case 9:
            case 11:
                day=30;break;
            case 2:
                if(year%4==0&&year%100!=0||year%400==0){
                    day=29;
                }
            else {
                    day=28;
                }
        }
        System.out.println(year+"年"+month+"月有"+day+"天");
    }
}
